Injector



(Model.) 2 Sheets-Sheet 2.

L. E. HOGUE.

INJEGTOR.

No. 263,410. Patented Aug. 29, 1882.

Tricia;

ATENT LOVREN E. HOGUE, OF SANDY LAKE, PENNSYLVANIA.

INJECTOR.

SPECIFICATION forming part of Letters Patent No. 263,410, dated August 29, 1882.

Application filed February 1, 1882. (Model.)

To all lwhom it may concern Be it known that I, LovREN E. Hoc-Un, a citizen ofthe United States, residing at Sandy Lahe, in the county ot' Mercer and Stat-e of Pennsylvania, have invented certain new and useful Improvements in Injectors, of which the following is a specification. I

My invention relates to injectorsv in which the amount of water passing through the deviceis regulated by means of a three-way cock 5 and the objects of my improvements are to provide an injector with a three-way cock located centrally on the axis thereof, and also to provide said device with means independent of said cock to regulate the admission of steam and water therein, and consequently the water raising` or forcing power ot the apparatus, as may be desired. I attain these objects bythe device illustrated in the accompanying drawings, in which- Figure l is a vertical section taken through the lifting and forcing tubes of theinjector. Fig. 2 is a vertical section taken at right angies with the section in Fig. l. Fig. 3 is a perspective view ofthe three-way plug removed from the device. Fig. Llisa horizontal section on line :c of Fig. 2, showing the water-passages leading to the lifting and forcing tubes. Fig. 5 is a horizontal section on line t/yof Fig. 2. showing the passages controlled by the three-way cock, thelatter being in this case so turned as to place one of the forcing-tubes in communication with the boiler and close the other as well as the overiiow-passage.

In said drawings, A represents the shell, made in the form of a cylinder, having on one side an opening, B, for the admission ot' steam into the injector, the steam being conducted to said opening B through suitable pipes from the dome or other steam part ot' the boiler. Tater is admitted into the injector through the opening C, made in the side of the shell, preferably diametricall y opposite the opening B, through which steam is admitted, and the discharge-openin g D is placed under but at some distance below the steam-opening B.

The amount of water brought to the dischargeopenin g D is controlled by the cock E, placed in line with the axis of the device, said cock being provided with three openings, e, e', and

e2, at substantially the same height to direct water from either one or both of the forcingtubes E through the discharge-opening D, and suitable pipes leading to the bottom of the boiler or to some other point where it may be desired to have a rapid stream otl water. The interior of the shell is divided vertically into two main chambers by the partition A', formingthewalls oftheforcing-iubes. Oneofthese is the chamber G, made to receive the water admit-ted through the lifting-tube a', and the other is an air-chamber, H, permanently open and in communication with the surrounding air by means of the openings It in the bottom of said air-chamber. The surrounding air, being thus free to pass in and out of the case, tends to keep it cool, as it is desired that it should be for the proper working of the injector. For the same reason the steam-chamber B is made small, and the greater portion thereof lies directly on top of the airchamber. rlhe nozzles a and a' of the liftingtube are controlled by the conical spindle I, forming therewith annular openings, the size of which can be regulated by turning the handle I on top of the spindle, as said spindle carries a screw-thread, I2, that engages with the thread cut within the interior of the cap A2, the latter being also provided with a stuffing-box, a2.

Each forcing-tube is composed of two nozzles, b and b,screwed one above the other in an opening formed within the partition A. The water-passage g', leading from the water-chainber G, being just above the top of the lower nozzle, b', the Water is admitted in an annular stream around the lower end of the ripper or steam nozzle, b. Each one of these steamnozzles b is controlled by the conical extremity of a'screw-spindle, j', passing through a cap, A3, secured to the top ot' the injector. Each cap is provided with a stuffing-box, and each spindlefhas a handle,f, by which means it can be operated and the size of the opening admittin g steam into the nozzle bhe regulated.

The cock E has two transverse partitions, E and E2, extending about two-thirds across its interior above and under an angular or pointed vertical partition, E3, to direct the water issuing from the side ot' either one or both IOO e umile ofthe forcing-tubes to the delivery-opening D. The cock E is also provided with an opening, c3, that can be ptit in communication with the openingg, leadingfrom the water-chamber, and allow the overiiow of said chamber to escape in the rear ofthe partition E and out through the bottom of the cock adjacent to the handle E4.

In the bottom ofthe water-chamber there is a screw-tapped opening, K, to which a hose may be attached for use in ease of re or for other purposes; or it may be used for overflow and may be provided with a stop-cock.

In operating with this injector the opening B is put in communication with the steamspace of a boiler, the opening D with the water-space of the boiler, and the opening C with the source of water-supply. rlhen both of the forcing-tubes nozzles b being closed, the long spindle I is eleva-ted sufficiently to admit an annular stream of steam through the nozzle a. The steam draws the water into the chamber (5', and forces it through the nozzle a upon the top of the cock E and through the side opening, g, into the water-chamber G, and from the top ot' the latter (see Fig. 4) through the passages g', leading into the forcing-tubes, and from either one or both ot' the forcing-tubes through the openings c, e', or e2, and chamber formed by the partitions E', E2, and E'J of the cock to the opening D, leading to the boiler.

The drawing Fig. 5 shows the cock E turned so as to put only one ot' the forcing-tubes in connection with the boiler; but it is clear that it can be turned so as to put both forcing-tubes in connection with the boiler.

IIaving now 'fully described my invention, I claim- 1. In an injector, the combination ot' a cylindrical shell provided with steam and water passages, a lifting-tube and forcing-tubes, and a conical spindle in the axis ot' said shell at one end and a three-way cock at the other end, substantially as and for the purposes de scribed.

2. In an injector, the combination of a shell provided with steam and water passages and a steamchamber at one end with a partition, A', provided with forcing-tubes, a water-chainber, G, on one side ot' said partition, and an air-chamber, II, provided with openings 71 substantially as and for the purposes set forth.

3. In an injector, the combination of a shell provided with steam and water passages, two forcing-tubes controlled by independent spindles, a lifting-tube spindle entering the nozzles aand a between the forcing-tubes, and a threeway cock, substantially as and for the purposes described.

4. In an injector, the combination ot' a lil'ting-tube'and forcing-tubes controlled by independent spindles with a cock provided with transverse partitions E and Ez, and longitudinal angular guide E3, substantially as and l'or the purpose described.

5. In an injector, the combination ol' a lii'ting-tube and forcing-tubes controlled by independent spindles with a cock provided with three openings, c c e?, in the same transverse plane, substantially as and for the purpose set forth.

LOVREN E. HOGUE.

Witnesses:

K. CHICKERING, JAMES C. Boren. 

